<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title></title>
	<style>
		div{
			/*color: transparent;*/
			width: 0px;
			height: 0px;
			border-bottom: 20px solid red;
			border-left: 20px solid transparent;
			border-right: 20px solid transparent;
			

		}
	</style>
</head>
<body>
	<div>
		

	</div>
	
</body>
</html>